Del Mar, Victoria, and Wharton had been members of the South Texas Conference while Kilgore and Tyler were members of the Big Six.
[1] Tyler left the conference abruptly in September 1957.
Del Mar, Victoria, and Wharton joined the Pioneer Conference.
[3] Kilgore initially joined the Pioneer Conference as well, but then moved to newly-formed Texas Eastern Conference, along with Paris Junior College, Texarkana College, and Tyler.
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